紫外線(xiàn)探傷燈在無(wú)損檢測(cè)NDT中使用

紫外線(xiàn)探傷燈在無(wú)損檢測(cè)NDT中使用

紫外線(xiàn)發(fā)生在可見(jiàn)光譜和X射線(xiàn)光譜之間。紫外線(xiàn)波長(zhǎng)范圍指定為100 nm至400 nm，盡管您可能會(huì)發(fā)現(xiàn)長(zhǎng)波側(cè)的定義超過(guò)此范圍。雖然人眼看不到大部分紫外線(xiàn)輸出，但在與可見(jiàn)光相鄰的波長(zhǎng)下可以看到紫色眩光。LED紫外線(xiàn)燈可以分為3個(gè)一般區(qū)域。這些紫外線(xiàn)燈被分類(lèi)為UV-A燈，UV-B燈和UV-C燈。

紫外線(xiàn) A （UV-A）燈: 400 – 315 nm LED燈傳統(tǒng)上用于無(wú)損檢測(cè)（NDT），防偽檢測(cè)或驗(yàn)證（貨幣，駕駛執(zhí)照，文件），取證（犯罪現(xiàn)場(chǎng)調(diào)查），紫外線(xiàn)固化（油墨，粘合劑），藝術(shù)品修復(fù)等應(yīng)用。

專(zhuān)門(mén)用于無(wú)損檢測(cè)（NDT）的UV-A紫外線(xiàn)探傷燈，熒光滲透劑和磁粉探傷材料在UV-A下在365nm處發(fā)出熒光。這就是滲透劑和熒光磁粉的配方在365nm紫外線(xiàn)燈波長(zhǎng)下反應(yīng)（熒光）的方式。在取證中，在UV-A下，單獨(dú)或通過(guò)添加專(zhuān)用粉末來(lái)檢測(cè)和檢查許多痕跡。瑞典蘭寶Labino UV-A紫外線(xiàn)燈 產(chǎn)品組合包括GX  UV-A 吊掛式探傷燈, BB2.0系列手持式UV-A紫外線(xiàn)燈, MB2.0系列手持式UV-A紫外線(xiàn)燈, UVG3 2.0紫外線(xiàn)手電筒（UV-A FLASHLIGHT）和UVG5 紫外線(xiàn)頭燈（UV-A HEADLIGHT）。

紫外線(xiàn)B（UV-B）燈：315 – 280 nm是紫外光譜中zui不受贊賞的波長(zhǎng)，盡管并非完全被忽視。紫外線(xiàn)固化，生物醫(yī)學(xué)和DNA分析對(duì)UV-B有一定的用途。

紫外線(xiàn)C（UV-C）燈：280 - 100 nm：

由于COVID-19，短波紫外線(xiàn)燈（UV-C）280 - 100 nm可能是容易被大家熟知的紫外線(xiàn)燈。短波紫外線(xiàn)燈主要用于以及空氣和水凈化系統(tǒng)。

類(lèi)別的紫外線(xiàn)燈都存在安全問(wèn)題，盡管短波紫外線(xiàn)燈的UV-C是有害的，不僅對(duì)細(xì)菌等微生物，而且對(duì)人類(lèi)也是如此。紫外線(xiàn)一般會(huì)對(duì)眼睛造成傷害，并成為皮膚癌的原因。采取一切預(yù)防措施，佩戴專(zhuān)業(yè)的紫外線(xiàn)防護(hù)眼鏡或紫外線(xiàn)防護(hù)面罩來(lái)保護(hù)紫外線(xiàn)燈的操作者免受紫外線(xiàn)照射。

How the Ultraviolet (UV) Spectrum is used in nondestructive testing (NDT)

Ultraviolet light occurs between the visible and x-ray spectrums. The Ultraviolet wavelength range is specified as 100 nm to 400 nm although you may find definitions exceeding this on the long wave side. Although much of the output of UV light is not visible to the human eye, a violet glare is visible in wavelengths neighboring visible light. UV light for LEDs can be broken down into 3 general areas. These are classified as UV-A, UV-B and UV-C.

Ultraviolet A (UV-A) 400 – 315 nm LED lights have been traditionally used in applications such as NONDESTRUCTIVE TESTING (NDT), counterfeit detection or validation (Currency, Driver’s license, Documents), FORENSICS (Crime scene investigations), UV CURING (inks, adhesives), ART RESTORATION, to name a few.

Specifically for NONDESTRUCTIVE TESTING (NDT), all fluorescent penetrants and magnetic particle materials fluoresce under UV-A, at 365 nm. This is how the formulations for penetrants and magnetic particle materials were designed to react (fluoresce), at 365 nm wavelength. In Forensics, a number of traces are detected and examined under UV-A, individually, or by adding specialized powders. Labino UV-A portfolio of products consists of GX ORION STATIONERY UV-A, BB 2.0 SERIES HANDHELD UV-A, MB 3.0 SERIES HANDHELD UV-A, UVG3 2.0 UV-A FLASHLIGHT and UVG5 UV-A HEADLIGHT.

Ultraviolet B (UV-B) 315 – 280 nm is the least appreciated wavelength within the UV spectrum albeit not entirely neglected. UV curing, biomedical and DNA analysis have some use for UV-B.

Ultraviolet C (UV-C) 280 – 100 nm lights are perhaps the most recognizable ones these days due to COVID-19. They find usage in disinfection as well as air and water purification systems.

There are safety concerns with all categories of UV, although the UV-C is the most harmful, not just to micro-organisms such as bacteria, but also humans. UV in general can cause damage to the eyes and be the cause of skin cancer. Take all precautions and PROTECT YOURSELF AGAINST UV EXPOSURE.